1.
disconnect a telephone
切断电话线路，挂断电话
2.
press the on/off switch
按开关通电[断电]
3.
Hold the line
(不挂断电话)等候
4.
Wait! Don't hang up!
等等， 别挂断电话！
5.
earth leakage circuit breaker
通地泄露电路断电器
6.
To end a telephone conversation.
挂断电话结束电话交谈
7.
magneto breaker arm point
磁电机断电器臂接触点
8.
A power cut, ie temporary reduction or stoppage of an electric current
电力不足（电力暂时性的减弱或断电）
9.
break [make] contact
切断 [接通] 电流,断[接]电
10.
circuit repetitive peak off-state voltage
电路断态重复峰值电压
11.
cut-out relay armature spring
断流继电器电转子弹簧
12.
capacity current breaking test
电容性电流开断试验
13.
battery cut-out
电池电路自动断路器
14.
SYSTEM RELAY GND CIRCUIT OPEN
系统继电器ＧＮＤ电路断路
15.
portable residual current device
手提电流式漏电断路器
16.
Disconnect the battery negative cable.
断开电池负极电缆。
17.
circuit crest working off-state voltage
电路断态工作峰值电压
18.
Pushbutton 2-circuit with circuit opening (break).
按钮2－具有电路断开（断路）的电路。